In order to provide transparency on the lane maintenance process at the 2018 Open Championships, Bowlers Journal Championships presented by USBC and team practice sessions, USBC is providing the following information:

NOTES:- The Lane Map Graph is the gravitational influence on the lane prior to the application of lane conditioner.- The black and dark blue areas of the Lane Map Graph are stronger gravitational forces to the right. - The light blue areas of the Lane Map Graph are weaker gravitational forces to the right. - The maroon and red areas of the Lane Map Graph are stronger gravitational forces to the left.- The yellow areas of the Lane Map Graph are weaker gravitational forces to the left.- The green areas of the Lane Map Graph represent a minimal gravitational influence.- The bottom of each Lane Map Graph is the foul line, and the top is the end of the pin deck.